Lock.



Patented Sept. I2, 1899. J. CLEMENT.

LUCK.

[Application led Apr. S, 1899,

2 Sheets-Sheet {No Model.)

No. 632,959. Patented Sept. .|2, |899.

J. CLEMENT.

LOCK. (Application filed Apr. s, 1899..' v

(No Model.) 2 Sheets-Sheet 2.

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Unir-ran STAT-Es PATENT @mee JOHNYCLEMENT, OF BABA-BOO, WISCONSIN.

LOCK.

SPECIFICATION forming part of Letters Patent No. 632,959, datedSeptember 12, 1899.

Application filed .April 8, 1899. Serial No. 712,215. lNoluodel.)

To alliuwm, it may concern:

Be it known that I, JOHN CLEMENT, a citizen of the United States,residing at Baraboo, l in the county of Sauk and State of Wisconsin;have invented certain new and useful `1inpro vements in Locks; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable'` others skilled in the art towhich it apperj tains to make and use the same.

This invention relates to improvements inl locks, and especially to thatclass of locks disconnected therefrom.

My invention has for its objects to provide;

a novel means for connecting the handle or knob operatively with thebolt from a vkey or; device on the inside of the door and by a de-ytachable key adapted to be used from the out-j side of the door, toprovide a novel guard to,` prevent the operation of the bolt except byvan authorized key, to provide a novel catch.' or device for connectingthe knob-spindle or` shaft to the bolt, to so construct the lock thatthe minimum number of parts only are nec-v essary, so that the lock willoccupy the least possible space, and'to generallyimprove and p catch Eisbyits spring F normally forced-outsimplify the lock.

`With such and other objects in view the invention is embodied in theparts and the arrangement and combinations of parts herein-l afterdescribed, and particularly set forth in; A

' i locking the knob shaft or spindle to the barrel the claims.

partipular construction which for the sake of illustration 1 havetherein delineated.

In said drawings, Figure 1 is a vertical lon-v gitudinal sectional viewof the lock, showing Fig. 2 is a my invention applied thereto.horizontal sectional view showing parts 1n elevation. Fig. El is atransverse sectional shaft.

the knob-spindle. lof the said guard.

view, enlarged, through the knobs and knob- Fig. 4 is'an elevation ofthe catch and inside operator removed from the knob spindle orshaft.Fig. 5 is an endelevation of the parts shown in Fig. 4E. Fig. G is a.perspective view of the key-guard removed from Fig. 7 is an endelevation Fig. 8 is a plan view showing the guard with the key and itsrelation to the catch removed from the spindle. Fig. 9 is a perspectiveView of the key.

Referring to the drawings, wherein like reference characters refer tolike parts throughout the several views, A indicates a lock-casing, Athelock in the present instance being a mortise-lock, B a sliding bolttherein, and-C a .barrel or sleeve mounted in bearings c 4in thelock-casing and provided with operating-arms c', adapted when rotated ineither direction to engage projections or lugs b on the bolt toretractthe same.

The details and novel parts of the lock will be hereinafter described.

Passing through the sleeve or barrel C and freely rotatable therein is aknob shaft or cylinder D, which, as shown, is tubular in form andcontains the operating parts of the catch (indicated at E) for lockingthe shaft D and barrel C together, which catch projects through anopening e in the knob-spindle D, as shown, and is secured to a spring F,secured, as by a pinf, from longitudinal or rotary movement within thespindle D. The

ward and when brought in register by a turning of the knob-spindle withone of the holes or notches c2 in the barrel or sleeve C is forced bythe spring into said hole or notch, thereby C,when the barrel can berotated by the knobshaft to retract the bolt. The barrel shown has foursuch notches c2, two on one side and two on the other side thereof, sothat the knob-shaft can be inserted in the barrel and cooperatetherewith from either side of the lock.

G indicates an operator for the latch or catch E on the inside of thedoor, and consists in the present instance of a tube rotatably mountedwithin the spindle D and pro- IOO jecting at its endg sufficiently farbeyond the knob or handle (indicated at D) to enable it to be graspedand rotated. This tube G has at g g at diametrically opposite pointstherein notches or slots through which the pin f passes. These notchesare of su fiicient length to permit a partial rotation of the shaft ortube G, and each slot is provided at one end thereof with a longitudinaloffset or enlargement of the slot g2, permitting a slight longitudinalmovement ofthe tube G for a purpose hereinafter specified. At g the tubeG is cut away to provide space for the free movement of the spring F. g3indicates a cam or inclined lug on said shaft or tube G and adapted iuthe rotation of said tube in one direction-to the right, in thisinstance-to engage a projection or lugf2 on the spring F and retract thelatter, drawing the catch E out of the notches in the barrel C and intothe hole c in the knob-shaft to permit a free rotation of the latter inthe barrel. The operator just described for the catch E, it will beobserved, is not intended for removal from the shaft, but is intendedfor the inside operator andremains in place at all times.

Within the knob-shaft at the outer end or end opposite the operator G isat guard-plug H, which at its inner end is ot' substantially thediameter of the bore of the knob-shaft and is at its outer end and forthe greater portion of its length of reduced diameter, leaving anannular space between the plug and the inner wall of the knob-shaft, asindicated at h, for the introduction of an annular key oroperating-sleeve, (indicated at I.) .The guard-plug H is held fixedly inthe knob-shaft in any suitable manner,as by a pin 71, passing throughthe large end thereof and through the knob-shaft. The guard-plug at itsenlarged end is cut away at h2 or slotted to receive and permit therotation therein of a longitudinally-extending finger h3 on the operatorG. This finger h3 is adapted to be engaged by a suitable part, as i' onthe key I, to rotate the operator G after the latter has been turned toretract the catch E from the barrel C, so that after the knob-shaft hasbeen disconnected from the barrel on the inside of the door by rotationof the operator to the right the engagement of the key with the fingerh3 will upon turning the key I to the left turn said operator G to theleft and permit the spring F to throw the catch into one of the notchesin the barrel and lock the knob-shaft to the same, thereby permittingthe throwing or retraction of the bolt by the operation of the outsideknob or handle, (indicated at CZ'.) Any suitable arrangement of guardsto prevent the introduction of an unauthorized key may be provided, thatshown being very efficient and comprising a projection h4 on theguard-plug opposite the end of the slot h2 and a sufficient distancetherefrom to permit the introduction and rotation of the part t' of thekey. A second projection h5,

out of alinement with the projection h4, is also provided, these twoprojections requiring a key of novel construction, such as indicated, tobe used. The key shown is provided with the longitudinal slot 2, havingthe lateral olfset portions 'lf3 and i4 to permit of the key beingturned after it has been inserted. h is a lug on the guard-plug, adaptedto engage the rear end of the part on the key to prevent rotation in theopposite direction. The construction of the guard and key,it will beobserved,constitutes a very efficient means for preventing the insertionof an implement other than the properly-fashioned key to engage andoperate the finger 71.3. It will beobserved that by means of thelongitudinal extension g of the slots g in the operator Gthe latter canbe moved longitudinally to bring the finger h3 o ut of the path of thepart 'L' of the key, and thus effectually prevent the operation of thecatch E from the outside by the key or other means.

The knobs or handles d d may be secured to the knob-shaft in anydesirable or suitable manner, they being shown screwed onto the ends ofthe shaft and held from rotation thereon by means of keys d2 d3.

My lock proper is also of novel construction in the followingparticulars: The bolt B is practically of the same width as the casingA, but is sufficiently shorter than the casing to permit of its slidinglongitudinally therein. The bolt is reduced in thickness, as indicatedatb', for the provision of space for the operating-sprin g, (indicatedat K.) This spring is heldin place between the wall b2 of the bolt and abar L, movably supported on the reduced portion of the bolt andprevented from backward movement thereon beyond a certain point by thelugs or projections b4. On one part of the lock-casing A, which is shownas being made in two parts a and a', are lugs or projections a2, adaptedwhen the parts of the casing are together to engage behind the bar L atthe sides of the lugs or projections b4 and prevent the rearwardmovement of the bar L when the bolt is retracted, thereby placing thespring K under tension, which will tend to force the bolt outward intoengagement with the bolt-strike. It will thus be observed that the lockis constructed in a very compact and simple manner and that when theparts of the lock-casing are separated the spring is relieved fromtension, thus avoiding the usual objections to a lock in -which thesprings are held between a part of the casing and the bolt and areliable when the casing is opened to spring out of place, thereby causinggreat annoyance and trouble in replacing the spring.

M indicates an edge plate suitably fashioned to engage the end of thelock-casing and provided with suitable screw-openings mm for thesecuring-screw. The plate M,

as shown, is detached from the casing A. As will be seen from thedrawings, the bolt is IOO IIO

IIS

made with parallel sides, andthe lock-strike' (indicated at N) isprovided with a suitable projecting inclined portion n to be engaged bythe bolt in the closing of the door. This, however, is immaterial, asthe bolt can be, as is common, provided with a beveled face to engagethe straight lock-strike.

In order that the operating-key and operator G may not project so farbeyond the operating handles or knobs to disligure the same and at thesame time to provide sufficient space for grasping and operating the keyand operator, I have shown each knob provided with a concavity orcup-shaped recess, (indicated at d21 and dil, respectively.) y

From the foregoing description it is believed the operation of the lockwill be readily understood, it simply remaining to say that when thecatch E is by its spring thrown out into engagemant with th'e barrel theoperator simply turns the operator G to the right, retracting the catchE by the engagement of the cam-lug on the operator with the projectionf2 on the spring F, and that after the catch has been so retracted theoperator G can be turned to the left to permit the spring F to againthrow the catch into engagement with the barrel by the insertion of thekey I and the turning thereof to the left, when the part t' of the keywill engage the finger 71,3 of the operator and turn the latter.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-,

l. In a lock, the combination with a bolt, of a knob or handle shaft, abarrel loosely sleeved on said shaft, and provided with means forthrowing the bolt, a spring-catch carried by the shaft for locking saidshaft to said barrel, and means for retracting said catch fromengagement with said barrel, comprising an operator rotatably mounted insaid shaft and provided with a cam-surface engaging a part connected tosaid catch, substantially as described.

2. In a lock, the combination with a bolt, of a knob or handle shaft, abarrel loosely sleeved thereon and provided with means for drawing saidbolt, a spring-catch secured within the shaft for locking said shaft tosaid barrel, and an operator for said catch rotatably mounted in saidshaft and provided with acam portion adapted to engage over a portion ofsaid catch for retracting said catch from engagement with said barrel,substantially as described.

3. In alock, the combination with a bolt, a barrel, provided with meansfor drawing the bolt, a knob-shaft working loosely in said barrel, acatch for locking said shaft to said barrel, an operator for said catchin one end of said shaft adapted to be grasped and turned by hand toretract the catch, andakey adapted to be inserted in said shaft from theother end in engagement with said operator and to rotate the same tothrow said catch into engagement with said barrel, substantially asdescribed.

et. In a lock, the combination With a sliding bolt, of a barrel providedwith means for throwing the bolt, a knob-shaft rotatably mounted in saidbarrel, a spring-.pressed catch for locking said barrel-to saidfshaft,an operator rotatably mounted in one end of said shaft provided with acam-surface adapted to retract said catch and provided with alongitudinally-extended linger, a key adapted to be inserted in theother end of said shaft and provided with a part adapted to engage saidfinger to rotate said operator, substantially as described.

5. In a lock, the combination with a sliding bolt, of aknob orhandleshaft, a barrel loosely sleeved on said shaft and provided with meansfor throwing said bolt, an operator in one end of said shaft, a catchfor locking said shaft to the barrel and adapted to be operated by therotation of said operator, a guard-plug in the other end of the shaftprovided with a slot, a finger on said operator working in said slot,and a key adapted to engage said finger to rotate said operator,substantially as described.

6. In a lock, the combination with a sliding bolt, of a rotatableknob-shaft, acatch for operatively connecting said shaft withboltthrowing means, an operator for said catch in one end of the shaft,a guard-plug in the other end of said shaft, and an annular key adaptedto be inserted between said shaft and plug and provided with means forengaging said operator, substantially as de scribed.

7. In a lock, the combination with a bolt and means for throwing thesame comprising a rotatable knob-shaft, of a guard-plug in said shaftprovided with a longitudinal slot, an operator and means in said shaftfor operatively connecting the same with said boltthrowing means, aguard-lug on said plug opposite the end of said slot and a key providedwith a part 't' adapted to engage said operator, substantially asdescribed.

S. In a lock, the combination of a knobshaft, a guard-plug thereinprovided with a reduced portion, guard-lugs on said plug, and an annularkey provided with slots to coperate with said guard-lugs, substantiallyas described. Y

9. In a lock, the combination with a sliding bolt, of a barrel providedwith means for throwing the same, a knob-shaft rotatably mounted in saidbarrel, a lspring-catch for locking said shaft to said barrel, a pin forsecuring said spring-catch in said shaft, and an operator provided witha slot g in which said pin works and with a longitudinal extension g2 ofsaid slot, substantially as and for the purpose described.

l0. In a lock, the combination of a casing, a sliding bolt in said casing having a reduced portion, a bar in said reduced portion held l'OO IIO

from movement in one direction by a lug on In testimony whereof I aix mysignature said bolt, :t leaf-spring resting on said bolt in presence oftwo witnesses. and conned between said bar and a portion of said bolt,and lugs on the casing adapted 5 to engage said bar and hold the samewhen lllitnesses:

said bolt is retracted to compress said spring, L. XV. FIELD,substantially as described. JAS. E. CONGDON.

JOHN CLEMENT.

